Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles

Abstract: We report a new composite material consisting of silver nanoparticles decorated with three‐dimensional molecular organic cages based on light‐absorbing porphyrins. The porphyrin cages serve to both stabilize the particles and allow diffusion and trapping of small molecules close to the metallic surface. Combining these two photoactive components results in a Fano‐resonant interaction between the porphyrin Soret band and the nanoparticle‐localised surface‐plasmon resonance. Time‐resolved spectroscopy revealed the silver nanoparticles transfer up to 37 % of their excited‐state energy to the stabilising layer of porphyrin cages. These unusual photophysics cause a 2‐fold current increase in photoelectrochemical water‐splitting measurements. The composite structure provides a compelling proof of concept for advanced photosensitiser systems with intrinsic porosity for photocatalytic and sensing applications.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Photoinitiated Energy Transfer in Porous‐Cage‐Stabilised Silver Nanoparticles ; day:08 ; month:05 ; year:2023 ; extent:8 ; Angewandte Chemie / International edition. International edition ; (08.05.2023) (gesamt 8)

Contributors, Places and Time

• Creator: Wilms, Michael ; Melendez, Lesly V. ; Hudson, Rohan J. ; Hall, Christopher R. ; Ratnayake, Samantha Prabath ; Smith, Trevor ; Gaspera, Enrico Della ; Bryant, Gary ; Connell, Timothy U. ; Gómez, Daniel E.

Further information

• DOI: 10.1002/anie.202303501
• URN: urn:nbn:de:101:1-2023050916282375600360
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 14.08.2025, 10:58 AM CEST